Improved manufactuee of railroad ties, bridges, buildings, wharves, fences



- s. P. TOWNSEND. MANUFACTURE OF RAILROAD TIES, BRIDGES BUILDINGS, WHARVES, FENCES, AND OTHER ARTICLES 0F GALVANIZED IRON.

No. 63,339. Patented Mar. 26, 1867.

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P. TOWNSEND, OF NEW PROVIDENCE, NEW JERSEY.

Letters Patent No. 63,339, dated March 26, 1867.

IMPROVED MANUFACTURE OF RAILROAD "IIES, BRIDGES BUILDINGS,WHARVES,'FENGE$, AND

' OTHER ARTICLES, 0F GALVANIZED IRON.

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TO ALL WHOM IT MAY CONCERN: p

I 'Be it known that I, SAMUEL Pl TOWNSEND, of New Providence, in the county of Union, and State of New Jersey, have invonted neir and useful improvements in Railroad Ties, Sills and Foundations for Buildings, and for building materials in place of wood, brick, stone, or cast iron, and also for steps, stoops, and piazza-s of buildings, and also for fence-posts, rails, and pickctsfor-fcnces, and also for wharvcs and piers, and other uscs; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being hadto the accompanying drawings, and to the letters of reference marked thereon. I

The nature of my invention consists in preparing, fromsheet iron, forms suitable to the use intended, corrugating them when ncedful for increased strength, galvanizing them to preserve them from oxidation or corrosion, and filling them with some material which will resist the pressure or concussion to which they must be subjected.

v To enable others to make. and use my invention, I will proceed to describe the. construction and use thereof. I I

For railroad ties sills, dock work, monuments, and building materials, or any other required form or sub. stance to sustain pressure or concussion, I make a case of sheet ir'on of the form'anddimensionsrequiredpeither corrugated or plain, leaving one end of the case open, then immerse it in a bath of molten metal, (preferring for the bath a mixture of zinc and tin,) and so galvanize the entire surfaces inside and outside,- to preserve the metal from oxidation or corrosion; then I fill the case compactly with sand, earth, concrete, cement, or other substance capable of sustaining pressure or concussion, and close the case securely, preferring hydraulic cement' for filling all cases which will be exposed to'the action of waters This makes a solid, durable tie or foundation,

and, for most purposes, more economical than stone. Wharves may be made entirely of such sills, and for foundations ousoft bottom they arc w cll adapted. For fence-posts, a filling of sand will sufiice; fenced-ails and pickets may also be made in the manner described, except that they'n'ill require no filling; and cast-iron columns or cylinders, for .founda'tionsof wharves, piers, plating for ships, and for building fortifications, gal

vanized and filled with cement, and beams and girders of either wrought or castiron, railway bars, and iron Work of railways, iron statuary, and columns for buildings, fences, bridges, agueducts,'&c., 'so galvanized, will be preservedfrom destruction by rust or corrosion indefinite periods of time. i 1 I Illustration.

I The accompanying drawing marked A represents the sheet iron case for a railroad tie. Those for sills are made similarly. Y Y 7 What I claim as my invention, and desire to secure by Letters Patent, is-- I 1. Ainew-artiole of manufacture for railroadties, sills, foundations, structures in water, fences, and buildings, fortifications, steps for stoops, piazza-s, galvanizing sheathing for bottoms of vessels, ships, steamers, boats, &c., and the like, made of the materials andin the manner herein described, or any other substantially the'same, and also for the galvanizing and preservation of railroad-car wheels, axles, and machinery. I

2. The preservation of iron from oxidation or corrosion, by galvanizing it as above described, when used for the purposes herein mentioned; i

"f SAMUEL P. TOWNSEND.

Witnesses:

Emu. F. Bnown. A. Moons. 

